Prologue
Part one. Social behavior. Primate diversity
Barbary macaques : model monkeys
Primate social systems
Chacma baboons : into the wild
Guinea baboons : uncharted territories
The evolution of baboons
Challenges of the third kind
Part two. Cognition. What do animals think?
Physical cognition
Social intelligence
Social knowledge
Theory of mind
The evolution of intelligence
Part three. Communication. What is communication?
The function of monkey sounds
The evolution of language : beginnings
Ape language projects
Natural communication in primates
Word learning in a domestic dog
The evolution of language : state of the art
The evolution of communication
Conclusion and prospects.